Evaluation of K-SVD Embedded with Modified ℓ _1 -Norm Sparse Representation Algorithm.
Meixi WangJingjing LiuShiwei MaWanquan LiuPublished in: LSMS/ICSEE (2) (2017)
Keyphrases
- markov random field
- sparse representation
- higher order
- regularized least squares
- learning algorithm
- dictionary learning
- reconstruction error
- sparse coefficients
- negative matrix factorization
- objective function
- norm minimization
- neural network
- image classification
- data sets
- sparse reconstruction
- joint optimization
- random projections
- face recognition
- sparse coding
- computer vision
- machine learning
- compressive sensing
- piecewise smooth
- image set
- high dimensional data
- natural images
- sparsity constraints
- input data
- probabilistic model